Adapter



FIG. 1 is a front perspective view of an adapter showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a front perspective view thereof in use condition;

FIG. 5 is a left side elevation view thereof; and,

FIG. 6 is a front elevation view of thereof.

The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design. 

CLAIM The ornamental design for an adapter, as shown and described. 